A g ile methodolo gy lacks in usabilit y and most of the time issues like usability do not lead the software toward success. User-Centered Design supports usability and according to UCD, the client should be a part of the process from planning to handover phase. Integration of these two areas is a difficult and challenging task w.r.t its applicability for collocated and distributed level. This research focuses on Agile and UCD integration, providing a few practices and artifacts to guide designer's and Agile teams to overcome the challenges. How UCD techniques can support Agile in order to deal with usability issues. In this paper, we have demonstrated that which are the levels and phases where stakeholders, especiall y the user involvement and interaction are required. Case study and observation method have been followed. The result of this research is a framework.
Requirements change management is a vital activity of the software development and even after maintenance. When we change one requirement it effects the other requirements of the system. A proper impact analysis maintains a repository of changing requirement, reusing previous experiences and reduces rework effort, is also essential for better requirement change management. There is also a need of a technique which improves requirement change management in a better way. In this paper, a model has been introduced which integrates Requirement Change Management and CBR (Case Based Reasoning) technique. Expert review method is used to evaluate our research. This frame work gives a better approach which manages requirement changes to the system. Our research outcome, i.e. the CBR technique used with the RCM, can provide a better approach to solve the issues of managing changes to the system. It maintains a repository by using CBR technique which is helpful to manage changes in future and we are able to solve the new change on the basis of previous experience.
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